Performance of GNSS positioning in PPP mode using MADOCA precise products  

作　　者：Brian Bramanto Rachel Theresia Irwan Gumilar Sidik T.Wibowo 

机构地区：[1]Geodetic Science,Engineering,and Innovation Research Group,Faculty of Earth Sciences and Technology,Institut Teknologi Bandung,Bandung 40135,Indonesia [2]Geodesy and Geomatics Engineering Study Program,Faculty of Earth Sciences and Technology,Institut Teknologi Bandung,Bandung 40135,Indonesia [3]Geodetic and Geodynamic Control Network Center,Geospatial Information Agency of Indonesia(BIG),Cibinong 16911,Indonesia

出　　处：《Geodesy and Geodynamics》2024年第6期642-651,共10页大地测量与地球动力学（英文版）

摘　　要：The Global Navigation Satellite System (GNSS) is widely utilized for accurate positioning.One commonly applied method to obtain precise coordinate estimates is by implementing the relative positioning in network mode.However,this approach can be complex and challenging.Fortunately,The Japan Aerospace Exploration Agency (JAXA) offers freely available satellite orbit and clock correction products called Multi-GNSS Advanced Demonstration Tool for Orbit and Clock Analysis (MADOCA),which can enhance positioning accuracy through the precise point positioning (PPP) method.This study focuses on evaluating PPP static mode positioning using MADOCA products and comparing the results with the highly precise relative positioning method.By analyzing a network of 20 GNSS stations in Indonesia,we found that the PPP method using MADOCA products provided favorable positioning estimates.The median discrepancies and the corresponding median absolute deviation (MAD) for easting,northing,and up components were estimated as 9±18 mm,10±9 mm,and 3±40 mm,respectively.These results indicate that PPP with MADOCA products can be a reliable alternative for establishing Indonesia's horizontal control networks,particularly for orders 0,1,2,and 3,and for a broad spectrum of geoscience monitoring activities.However,considerations such as epoch transformations and seismic activities should be taken into account for accurate positioning applications that comply with the definition of the national reference framework.

关 键 词：Global Navigation Satellite System(GNSS) Precise point positioning(PPP) MADOCA Positioning evaluation 

分 类 号：P228.4[天文地球—大地测量学与测量工程]